set interface ethernet0/3 dhcp server service
set interface ethernet0/3 dhcp server enable
set interface ethernet0/3 dhcp server option lease 1440000
set interface ethernet0/3 dhcp server option gateway
set interface ethernet0/3 dhcp server option netmask
set interface ethernet0/3 dhcp server option dns1
set interface ethernet0/3 dhcp server ip to
unset interface ethernet0/3 dhcp server config next-server-ip

Juniper Firewall TroubleShooting Command

-. 주니퍼 방화벽 장비를 사용하는데 있어 사용되는 ScreenOS 명령어 입니다.
    문제 발생시에 사용되는 명령어로써 장비 정보확인을 하는데 있어 기본/유용한
    명령어 입니다.


Trouble Shooting Command for Juniper Firewalls (ScreenOS)

Session & Interface counters  
get session  
get interface  
get counter stat  
get couter stat <interface>  
clear counter stat  
Debug & Snoop  
debug flow basic creates debugs in detail file name : /var/log/security-trace
more info-debug flow basic
set ff Packet-drop is a feature that will be added
get ff  
get debug  
get db stream monitor stop' stops real-time view , but debugs are still collected in log files
clear db Use 'file delete <filename> to actually delete file>
undebug <debug> (stops collecting debugs) Deactivate makes it easier to enable/disable.
Use activate traceoptions to activate.
undebug all  
debug ike detail creates debugs in default file name: kmd
snoop (packets THRU the JUNOS device) Not supported on SRX 3x00/5x00 yet
snoop (packets TO the JUNOS device) Only captures traffic destined for the RE of router itself.
Excludes PING .
Event Logs  
get event  
get event | include <string>
Note: There is not an equivalent command for 'get event include <string>'.
match displays only the lines that contains the string
find displays output starting from the first occurrence of the string
clear event  
Config & Software upgrade  
get config  
get license  
get chassis (serial numbers) show chas environment
show chas routing-engine
unset all more info-unset all
load config from tftp <tftp_server><configfile> TFTP is not supported. USE only FTP.HTTP or SCP
load software from tftp <tftp_server><screenosimage> to flash TFTP is not supported. USE only FTP.HTTP or SCP
Use 'request system software rollback' to rollback to previous s/w package
get policy  
get policy from <zone> to <zone>  
get ike cookie  
get sa  
clear ike cookie  
clear sa  
get nsrp  
exec nsrp vsd <vsd> mode backup (on master) see KB5885  
get dhcp client  
exec dhcp client <int> renew  
get route  
get route ip <ipaddress>  
get vr untrust-vr route  
get ospf nei  
set route int <int> gateway <ip>  
get vip  
get mip  
get dip  
get perf cpu  
get net-pak s  
get file  
get alg  
get service  
get tech  
set console page 0 

ISG Series Integrated Security Gateways.pdf

Product OverView
The ISG Series Integrated Security Gateways are ideally suited for securing enterprise, carrier, and data enter environments where advanced applications, such as VoIP and streaming media, demand consistent, scalable performance. The Juniper Networks ISG1000 and ISG2000 Integrated Security Gateways are purpose-built security solutions that leverage a fourth-generation security ASIC, along with high-speed microprocessors to deliver unmatched firewall and VPN performance.
Integrating best-in-class firewall, VPN, and optional Intrusion Detection and Prevention, the ISG1000 and ISG2000 enable secure, reliable connectivity along with network-and applicationlevel protection for critical, high-traffic network segments.

Product Description
The Juniper Networks® ISG1000 and ISG2000 Integrated Security Gateways are
fully integrated firewall/VPN systems that offer multi-gigabit performance, modular
architecture and rich virtualization capabilities. They are an ideal security solution for large
enterprise, data center and service provider networks.
The ISG Series Integrated Security Gateways are firewall/VPN-based systems that deliver
security features such as intrusion prevention system (IPS), antispam, Web filtering,
and Internet Content Adaptation Protocol (ICAP) antivirus redirection support. The
advanced system is further expandable with optionally integrated Intrusion Detection and
Prevention (IDP) or as a General Packet Radio Service (GPRS) firewall/VPN for mobile
network service provider environments.
The ISG Series modular architecture enables deployment with a wide variety of copper
and fiber interface options. Highly flexible segmentation and isolation of traffic belonging
to different trust levels can be achieved using advanced features such as virtual systems,
virtual LANs, and security zones. The ISG Series Integrated Security Gateways allow
multiple, separate firewall inspection or routing policies to simplify network design. This
enables the enforcement of security policies to traffic streams—even in highly complex
environments—without significant impact on the network itself.
The flexibility and efficiency offered by the ISG Series architecture provides state-ofthe-
art performance and best-in-class functionality as a firewall/VPN or integrated
firewall/VPN/IDP solution with optional security modules. The ISG1000 supports up to
two security modules, while the ISG2000 can support up to three security modules. The
security modules maintain their own dedicated processing and memory, and incorporate
technology designed to accelerate IDP packet processing. This reduces the number of
separate security devices and management applications, and simplifies deployment effort
and network complexity. The result is higher cost savings.
The ISG Series with IDP utilizes the same award-winning software found on Juniper
Networks IDP Series Intrusion Detection and Prevention Appliances. The IDP security
module supports multi-method detection, combining eight different detection
mechanisms—including stateful signatures and protocol anomaly detection. In addition
to helping businesses defend against security threats such as worms, trojans, malware,

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